Partial list of consults from Gulf Wars 2019

Koia Karasova

• Russian, short and sweet
• Koia - 1437 feminine diminutive of Koika, Wickendenden 3rd edition
• Karasova - standard feminine patronymic of Karas, 1498 <Karas Manukhin syn Esiukov>, Wickendenden 3rd edition

Gwyneth Vach

• Welsch, real first name is Gwenyth
• Gwyneth is a female given name found in the Family Search Historical Records: Gwineth Robert; Female; Marriage; 20 Oct 1577; Conway, Caernavon, England; Batch: M04948-1 (Wales Marriages1541-1900). Eastern Crown comments that it's been well-established that i and y are interchangeable in late-period English and Welsh.
• Vach - from A Simple Guide to Constructing 13th Century Welsh Names - https://heraldry.sca.org/names/welsh13.html